Leon Wansleben’s new book, The Rise of Central Banks, explains how central banks have emerged as powerful monetary governors over the past half-century. Yet the book’s recognition that central banks cannot extricate themselves from quantitative easing and market bailouts begs the question: what does it mean for central banks to be dominant but captive? In this commentary, I identify the book’s ambiguities with the concept of infrastructural power the book draws from Michael Mann. Unless the dynamics of state-market interdependence are well specified, giving due attention to the sources of both public and private power, it is unclear what kind of agency central bankers are exercising if they lack sufficient autonomy to act in the public interest.